Erbium is a rare earth metal from the periodic table. It is a silvery-white, malleable metal which is often found in combination with other rare earth elements. Erbium has several industrial applications, including the production of optical fibers and lasers.
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| Atomic number | 68 |
| Group | IVA |
| Period | 6 |
| Mass | 167.259 |
| Latin name | Erbium |
| Electron configuration | [Xe]4f12 6s2 |
| Oxidation state | 0, 1, 2, 3 |